That is so easy to do on ustream! No kidding. I'm all set up for it and do it on my iMac and iPhone.
This guy is sneaking this broadcast probably using his iPhone as a web cam. I use mine when at the coffee store. If he raised it higher he'd probably get kicked out of the event!
Check it out guys: ustream!! I posted about it here with the hummingbird. Works with the cheapest of cameras. I can take movies with my iPhone 3G too.